package com.treeroot.security.entity.dto;


import com.alibaba.fastjson.annotation.JSONField;
import com.treeroot.security.entity.User;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

@Data
@NoArgsConstructor
public class LoginUser implements UserDetails {

    //用户信息
    private User user;
    //    权限信息
    private List<String> permissions;

    public LoginUser(User user, List<String> permissions) {
        this.user = user;
        this.permissions = permissions;
    }
    //存储SpringSecurity所需要的权限信息的集合
    @JSONField(serialize = false)
    private List<GrantedAuthority> authorities;

    /**
     *
     * @return 封装权限信息
     */
    @Override
    public  Collection<? extends GrantedAuthority> getAuthorities() {
        if(authorities!=null){
            return authorities;
        }
        //把permissions中字符串类型的权限信息转换成GrantedAuthority对象存入authorities中
        authorities = permissions.stream().
                map(SimpleGrantedAuthority::new)
                .collect(Collectors.toList());
        return authorities;
    }


    /**
     * @return 登录密码
     */
    @Override
    public String getPassword() {
        return user.getPassword();
    }

    /**
     * @return 登录账号
     */
    @Override
    public String getUsername() {
        return user.getUserName();
    }

    /**
     * @return 判断是否未过期
     */
    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    /**
     * @return 判断账户是否未锁定
     */
    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    /**
     * @return 凭据是否未过期
     */
    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    /**
     * @return 判断是否可以使用
     */
    @Override
    public boolean isEnabled() {
        return true;
    }
}
